Add host field to Post an event V2 API

.generator/schemas/v2/openapi.yaml

@@ -20219,6 +20219,13 @@ components:
           $ref: '#/components/schemas/EventPayloadAttributes'
         category:
           $ref: '#/components/schemas/EventCategory'
+        host:
+          description: Host name to associate with the event. Any tags associated
+            with the host are also applied to this event. Limited to 255 characters.
+          example: hostname
+          maxLength: 255
+          minLength: 1
+          type: string
         integration_id:
           $ref: '#/components/schemas/EventPayloadIntegrationId'
         message:
@@ -67608,6 +67615,7 @@ paths:
                           rule:
                             datacenter: devcycle.us1.prod
                       category: change
+                      host: hostname
                       integration_id: custom-events
                       message: payment_processed feature flag has been enabled
                       tags:

examples/v2_events_CreateEvent.rs

@@ -54,6 +54,7 @@ async fn main() {
             "payment_processed feature flag updated".to_string(),
         )
         .aggregation_key("aggregation_key_123".to_string())
+        .host("test-host".to_string())
         .integration_id(EventPayloadIntegrationId::CUSTOM_EVENTS)
         .message("payment_processed feature flag has been enabled".to_string())
         .tags(vec!["env:api_client_test".to_string()]),

src/datadogV2/model/model_event_payload.rs

@@ -20,6 +20,9 @@ pub struct EventPayload {
     /// Event category identifying the type of event.
     #[serde(rename = "category")]
     pub category: crate::datadogV2::model::EventCategory,
+    /// Host name to associate with the event. Any tags associated with the host are also applied to this event. Limited to 255 characters.
+    #[serde(rename = "host")]
+    pub host: Option<String>,
     /// Integration ID sourced from integration manifests.
     #[serde(rename = "integration_id")]
     pub integration_id: Option<crate::datadogV2::model::EventPayloadIntegrationId>,
@@ -53,6 +56,7 @@ impl EventPayload {
             aggregation_key: None,
             attributes,
             category,
+            host: None,
             integration_id: None,
             message: None,
             tags: None,
@@ -67,6 +71,11 @@ impl EventPayload {
         self
     }
 
+    pub fn host(mut self, value: String) -> Self {
+        self.host = Some(value);
+        self
+    }
+
     pub fn integration_id(
         mut self,
         value: crate::datadogV2::model::EventPayloadIntegrationId,
@@ -111,6 +120,7 @@ impl<'de> Deserialize<'de> for EventPayload {
                 let mut aggregation_key: Option<String> = None;
                 let mut attributes: Option<crate::datadogV2::model::EventPayloadAttributes> = None;
                 let mut category: Option<crate::datadogV2::model::EventCategory> = None;
+                let mut host: Option<String> = None;
                 let mut integration_id: Option<crate::datadogV2::model::EventPayloadIntegrationId> =
                     None;
                 let mut message: Option<String> = None;
@@ -152,6 +162,12 @@ impl<'de> Deserialize<'de> for EventPayload {
                                 }
                             }
                         }
+                        "host" => {
+                            if v.is_null() {
+                                continue;
+                            }
+                            host = Some(serde_json::from_value(v).map_err(M::Error::custom)?);
+                        }
                         "integration_id" => {
                             if v.is_null() {
                                 continue;
@@ -203,6 +219,7 @@ impl<'de> Deserialize<'de> for EventPayload {
                     aggregation_key,
                     attributes,
                     category,
+                    host,
                     integration_id,
                     message,
                     tags,

tests/scenarios/cassettes/v2/events/Post-an-event-returns-Bad-request-response.frozen

@@ -1 +1 @@
-2025-06-10T15:38:58.529Z
+2025-12-10T21:31:06.468Z

tests/scenarios/cassettes/v2/events/Post-an-event-returns-Bad-request-response.json

@@ -3,7 +3,7 @@
     {
       "request": {
         "body": {
-          "string": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"user_id\":\"datadog_user_id\",\"user_name\":\"datadog_username\"},\"resource_link\":\"datadog.com/feature/fallback_payments_test\"},\"changed_resource\":{\"name\":\"fallback_payments_test\",\"type\":\"feature_flag\"},\"impacted_resources\":[{\"name\":\"payments_api\",\"type\":\"service\"}],\"new_value\":{\"enabled\":true,\"percentage\":\"50%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}},\"prev_value\":{\"enabled\":true,\"percentage\":\"10%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}}},\"category\":\"invalid\",\"integration_id\":\"custom-events\",\"message\":\"payment_processed feature flag has been enabled\",\"tags\":[\"env:api_client_test\"],\"title\":\"payment_processed feature flag updated\"},\"type\":\"event\"}}",
+          "string": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"user_id\":\"datadog_user_id\",\"user_name\":\"datadog_username\"},\"resource_link\":\"datadog.com/feature/fallback_payments_test\"},\"changed_resource\":{\"name\":\"fallback_payments_test\",\"type\":\"feature_flag\"},\"impacted_resources\":[{\"name\":\"payments_api\",\"type\":\"service\"}],\"new_value\":{\"enabled\":true,\"percentage\":\"50%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}},\"prev_value\":{\"enabled\":true,\"percentage\":\"10%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}}},\"category\":\"invalid\",\"host\":\"test-host\",\"integration_id\":\"custom-events\",\"message\":\"payment_processed feature flag has been enabled\",\"tags\":[\"env:api_client_test\"],\"title\":\"payment_processed feature flag updated\"},\"type\":\"event\"}}",
           "encoding": null
         },
         "headers": {
@@ -32,7 +32,7 @@
           "message": "Bad Request"
         }
       },
-      "recorded_at": "Tue, 10 Jun 2025 15:38:58 GMT"
+      "recorded_at": "Wed, 10 Dec 2025 21:31:06 GMT"
     }
   ],
   "recorded_with": "VCR 6.0.0"

tests/scenarios/cassettes/v2/events/Post-an-event-returns-OK-response.frozen

@@ -1 +1 @@
-2025-06-10T15:38:58.954Z
+2025-12-10T21:30:25.683Z

tests/scenarios/cassettes/v2/events/Post-an-event-returns-OK-response.json

@@ -3,7 +3,7 @@
     {
       "request": {
         "body": {
-          "string": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"user_id\":\"datadog_user_id\",\"user_name\":\"datadog_username\"},\"resource_link\":\"datadog.com/feature/fallback_payments_test\"},\"changed_resource\":{\"name\":\"fallback_payments_test\",\"type\":\"feature_flag\"},\"impacted_resources\":[{\"name\":\"payments_api\",\"type\":\"service\"}],\"new_value\":{\"enabled\":true,\"percentage\":\"50%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}},\"prev_value\":{\"enabled\":true,\"percentage\":\"10%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}}},\"category\":\"change\",\"integration_id\":\"custom-events\",\"message\":\"payment_processed feature flag has been enabled\",\"tags\":[\"env:api_client_test\"],\"title\":\"payment_processed feature flag updated\"},\"type\":\"event\"}}",
+          "string": "{\"data\":{\"attributes\":{\"aggregation_key\":\"aggregation_key_123\",\"attributes\":{\"author\":{\"name\":\"[email protected]\",\"type\":\"user\"},\"change_metadata\":{\"dd\":{\"team\":\"datadog_team\",\"user_email\":\"[email protected]\",\"user_id\":\"datadog_user_id\",\"user_name\":\"datadog_username\"},\"resource_link\":\"datadog.com/feature/fallback_payments_test\"},\"changed_resource\":{\"name\":\"fallback_payments_test\",\"type\":\"feature_flag\"},\"impacted_resources\":[{\"name\":\"payments_api\",\"type\":\"service\"}],\"new_value\":{\"enabled\":true,\"percentage\":\"50%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}},\"prev_value\":{\"enabled\":true,\"percentage\":\"10%\",\"rule\":{\"datacenter\":\"devcycle.us1.prod\"}}},\"category\":\"change\",\"host\":\"test-host\",\"integration_id\":\"custom-events\",\"message\":\"payment_processed feature flag has been enabled\",\"tags\":[\"env:api_client_test\"],\"title\":\"payment_processed feature flag updated\"},\"type\":\"event\"}}",
           "encoding": null
         },
         "headers": {
@@ -19,7 +19,7 @@
       },
       "response": {
         "body": {
-          "string": "{\"data\":{\"attributes\":{\"attributes\":{\"evt\":{\"uid\":\"AZdafqaTAACKG_iMQ82pmAAA\"}}},\"id\":\"_\",\"type\":\"event\"},\"links\":{\"self\":\"https://app.datadoghq.com/event/event?uid=AZdafqaTAACKG_iMQ82pmAAA\"}}",
+          "string": "{\"data\":{\"attributes\":{\"attributes\":{\"evt\":{\"id\":\"8407723285051133019\",\"uid\":\"AZsKLCxvAACrUQTfNDwMWwAA\"}}},\"id\":\"_\",\"type\":\"event\"},\"links\":{\"self\":\"https://app.datadoghq.com/event/event?uid=AZsKLCxvAACrUQTfNDwMWwAA\"}}",
           "encoding": null
         },
         "headers": {
@@ -32,7 +32,7 @@
           "message": "Accepted"
         }
       },
-      "recorded_at": "Tue, 10 Jun 2025 15:38:58 GMT"
+      "recorded_at": "Wed, 10 Dec 2025 21:30:25 GMT"
     }
   ],
   "recorded_with": "VCR 6.0.0"

tests/scenarios/features/v2/events.feature

@@ -74,14 +74,14 @@ Feature: Events
   @team:DataDog/event-management
   Scenario: Post an event returns "Bad request" response
     Given new "CreateEvent" request
-    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "invalid", "integration_id": "custom-events", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
+    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "invalid", "integration_id": "custom-events", "host": "test-host", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
     When the request is sent
     Then the response status is 400 Bad request
 
   @skip-validation @team:DataDog/event-management
   Scenario: Post an event returns "OK" response
     Given new "CreateEvent" request
-    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "change", "integration_id": "custom-events", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
+    And body with value {"data": {"attributes": {"aggregation_key": "aggregation_key_123", "attributes": {"author": {"name": "[email protected]", "type": "user"}, "change_metadata": {"dd": {"team": "datadog_team", "user_email": "[email protected]", "user_id": "datadog_user_id", "user_name": "datadog_username"}, "resource_link": "datadog.com/feature/fallback_payments_test"}, "changed_resource": {"name": "fallback_payments_test", "type": "feature_flag"}, "impacted_resources": [{"name": "payments_api", "type": "service"}], "new_value": {"enabled": true, "percentage": "50%", "rule": {"datacenter": "devcycle.us1.prod"}}, "prev_value": {"enabled": true, "percentage": "10%", "rule": {"datacenter": "devcycle.us1.prod"}}}, "category": "change", "integration_id": "custom-events", "host": "test-host", "message": "payment_processed feature flag has been enabled", "tags": ["env:api_client_test"], "title": "payment_processed feature flag updated"}, "type": "event"}}
     When the request is sent
     Then the response status is 202 OK
     And the response "data.type" is equal to "event"